package com.atguigu.flink.chapter11;

import com.atguigu.flink.bean.WaterSensor;
import org.apache.flink.api.common.eventtime.WatermarkStrategy;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.table.api.Table;
import org.apache.flink.table.api.bridge.java.StreamTableEnvironment;

import java.time.Duration;

import static org.apache.flink.table.api.Expressions.$;

/**
 * @Author lizhenchao@atguigu.cn
 * @Date 2022/1/22 13:50
 */
public class Flink10_Window_Gouped_SQL {
    public static void main(String[] args) {
        Configuration conf = new Configuration();
        conf.setInteger("rest.port", 20000);
        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(conf);
        env.setParallelism(1);
        
        StreamTableEnvironment tEnv = StreamTableEnvironment.create(env);
        DataStream<WaterSensor> waterSensorStream =
            env.fromElements(new WaterSensor("sensor_1", 1022L, 10),
                             new WaterSensor("sensor_1", 2000L, 20),
                             new WaterSensor("sensor_2", 3000L, 30),
                             new WaterSensor("sensor_1", 4001L, 40),
                             new WaterSensor("sensor_1", 5000L, 50),
                             new WaterSensor("sensor_2", 6000L, 60))
                .assignTimestampsAndWatermarks(
                    WatermarkStrategy
                        .<WaterSensor>forBoundedOutOfOrderness(Duration.ofSeconds(3))
                        .withTimestampAssigner((ws, ts) -> ws.getTs())
                );
        Table table = tEnv.fromDataStream(waterSensorStream, $("id"), $("ts").rowtime(), $("vc"));
    
        //        select id, sum(vc) from t group by id, w;
        tEnv.createTemporaryView("sensor", table);
        
        /*tEnv.sqlQuery("select" +
                          " id, " +
                          " tumble_start(ts, interval '5' second) stt, " +
                          " tumble_end(ts, interval '5' second) edt, " +
                          " sum(vc) vc_sum " +
                          "from sensor " +
                          "group by id, tumble(ts, interval '5' second)")
            .execute()
            .print();*/
    
    
       /* tEnv.sqlQuery("select" +
                          " id, " +
                          " hop_start(ts, interval '2' second, interval '5' second ) stt, " +
                          " hop_end(ts, interval '2' second, interval '5' second ) edt, " +
                          " sum(vc) vc_sum " +
                          "from sensor " +
                          "group by id, hop(ts, interval '2' second, interval '5' second )")
            .execute()
            .print();*/
    
    
        tEnv.sqlQuery("select" +
                          " id, " +
                          " session_start(ts, interval '2' second) stt, " +
                          " session_end(ts, interval '2' second) edt, " +
                          " sum(vc) vc_sum " +
                          "from sensor " +
                          "group by id, session(ts, interval '2' second)")
            .execute()
            .print();
        
  
    }
}
